EP0897061A2 - Méthode pour détecter des ratés d' allumage pour un moteur ayant deux bougies par cylindre - Google Patents

Méthode pour détecter des ratés d' allumage pour un moteur ayant deux bougies par cylindre Download PDF

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Publication number
EP0897061A2
EP0897061A2 EP98114351A EP98114351A EP0897061A2 EP 0897061 A2 EP0897061 A2 EP 0897061A2 EP 98114351 A EP98114351 A EP 98114351A EP 98114351 A EP98114351 A EP 98114351A EP 0897061 A2 EP0897061 A2 EP 0897061A2
Authority
EP
European Patent Office
Prior art keywords
spark plugs
ion current
spark
spark plug
combustion engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98114351A
Other languages
German (de)
English (en)
Other versions
EP0897061B1 (fr
EP0897061A3 (fr
Inventor
Peter Hohner
Jürgen Schenk
Hartung Wilstermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Daimler Benz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG, Daimler Benz AG filed Critical DaimlerChrysler AG
Publication of EP0897061A2 publication Critical patent/EP0897061A2/fr
Publication of EP0897061A3 publication Critical patent/EP0897061A3/fr
Application granted granted Critical
Publication of EP0897061B1 publication Critical patent/EP0897061B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/11—Testing internal-combustion engines by detecting misfire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12

Definitions

  • the invention relates to a method for detecting misfires in a Internal combustion engine with two spark plugs per cylinder by measuring the ion current to the Spark plugs.
  • the invention has for its object to provide a method with which reliable detection of misfires in an internal combustion engine with two Spark plugs per cylinder is made possible with simple means.
  • Method for diagnosing the spark plug from the ion current signal on the spark plug are for example from DE 195 24 539, 195 24 540 and 195 24 541 and from unpublished patent application 197 20 532.1 known.
  • Misfires can be measured with the help of the ion current on the spark plug can be recognized by the fact that in the case of a defective spark plug no ion current signal is available. This is because the ion current measurement is information provides information on the condition of the burnt mixture in the area of the spark plug. Is this Mixture around the spark plug has not yet burned, no ion current signal is generated.
  • the two Spark plugs ignited simultaneously or with a slight time lag. After Ignition spreads the combustion starting from the spark plugs in the combustion chamber out.
  • the spark plugs are due to the progressive flame always in the burned mixture and thus indicate an ion current signal.
  • a of the two spark plugs is defective and therefore does not generate a spark, this has the result Consequence that no ion current signal is generated on this spark plug until the flame of the correctly ignited spark plug reaches the defective spark plug.
  • the broken spark plug therefore does not provide an ion current signal until the flame passes through the combustion chamber Has. There is an ion current signal on the correctly ignited spark plug immediately after the spark ends measurable.
  • Defective spark plugs usually have too large an electrode gap due to the burn or an insulator crack that causes an ignition spark in the insulator and does not lead between the electrodes of the spark plug. Both errors affect the ion current measurement, since it is at much higher voltages than the Ion current measurement occur. If a defective spark plug is recognized, the customer must not yet in the workshop, because the spark plug is intact and the mixture is complete can burn and there are no increased exhaust emissions.
  • a misfire delivers not on a defective spark plug, but for example attributable to the failure of the injector there is no ion current signal on both spark plugs. No Ion current signal on both spark plugs is an indication that that the misfire must have another cause. The case that both spark plugs are defective and no ion current signal deliver is extremely unlikely.
  • the recognition value is increased if the integrator value before the time after the ignition at which the flame would get from one spark plug to the other becomes. If this integration value is zero for one of the two Spark plugs and greater than zero after the entire combustion cycle, the corresponding spark plug is defective.
  • the time that the flame required to pass through the combustion chamber can motor parameters such as Speed, load and / or air-fuel ratio be calculated.
  • spark plug A With a correct ignition (spark plug A), a strong ion current signal is generated immediately after the ignition, while with a defective spark plug (spark plug B) only after the period t fl after the ignition, which the flame needs to move from the spark plug A to To get spark plug B, a (much smaller) ion current signal is generated.
  • spark plug B By integrating the two ion current signals over a full combustion cycle and comparing the integrator values with one another, it can be determined which candle is defective, in the present case the candle B.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP98114351A 1997-08-13 1998-07-30 Méthode pour détecter des ratés d' allumage pour un moteur ayant deux bougies par cylindre Expired - Lifetime EP0897061B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19735010A DE19735010C1 (de) 1997-08-13 1997-08-13 Verfahren zur Erkennung von Zündaussetzern bei einer Brennkraftmaschine mit zwei Zündkerzen pro Zylinder
DE19735010 1997-08-13

Publications (3)

Publication Number Publication Date
EP0897061A2 true EP0897061A2 (fr) 1999-02-17
EP0897061A3 EP0897061A3 (fr) 1999-12-08
EP0897061B1 EP0897061B1 (fr) 2003-04-23

Family

ID=7838812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98114351A Expired - Lifetime EP0897061B1 (fr) 1997-08-13 1998-07-30 Méthode pour détecter des ratés d' allumage pour un moteur ayant deux bougies par cylindre

Country Status (4)

Country Link
US (1) US6211680B1 (fr)
EP (1) EP0897061B1 (fr)
JP (1) JP2946488B2 (fr)
DE (1) DE19735010C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012014776A1 (de) 2012-07-25 2014-01-30 Volkswagen Aktiengesellschaft Verfahren und Steuergerät zur Erkennung von Verbrennungsaussetzern
US9279406B2 (en) 2012-06-22 2016-03-08 Illinois Tool Works, Inc. System and method for analyzing carbon build up in an engine

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19902939B4 (de) * 1998-09-02 2015-01-08 Continental Teves Ag & Co. Ohg Verfahren und Vorrichtung zum Ersetzen eines fehlerhaften Sensorsignals
DE19930311C1 (de) * 1999-07-01 2000-12-14 Siemens Ag Verfahren und Vorrichtung zum Bestimmen einer Betriebsstörung in einer Kraftstoffeinspritzanlage
DE10006004C1 (de) * 2000-02-11 2000-11-09 Bosch Gmbh Robert Verfahren zur Verbrennungsaussetzererkennung bei mehrzylindrigen Verbrennungsmtoren mit mehreren gleichzeitig zündenden Zylindern
US6559647B1 (en) 2001-11-02 2003-05-06 Ford Global Technologies, Llc Diagnosing spark plugs malfunction in a dual plug engine
US7251571B2 (en) * 2003-09-05 2007-07-31 Visteon Global Technologies, Inc. Methods of diagnosing open-secondary winding of an ignition coil using the ionization current signal
US7617040B2 (en) * 2006-10-10 2009-11-10 Toyota Jidosha Kabushiki Kaisha Ignition apparatus for internal combustion engine
US7677230B2 (en) * 2007-10-30 2010-03-16 Ford Global Technologies, Llc Internal combustion engine with multiple spark plugs per cylinder and ion current sensing
US7992542B2 (en) * 2008-03-11 2011-08-09 Ford Global Technologies, Llc Multiple spark plug per cylinder engine with individual plug control
US20130330236A1 (en) * 2012-06-12 2013-12-12 General Electric Company System for initiating a gasification reaction in a gasifier
CN114837871B (zh) * 2022-05-24 2024-02-20 潍柴动力股份有限公司 发动机的降级启动方法、降级启动装置、处理器与车辆

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05231292A (ja) * 1991-03-12 1993-09-07 Aisin Seiki Co Ltd 内燃機関の多重点火制御装置
JP2721604B2 (ja) * 1991-09-30 1998-03-04 株式会社日立製作所 燃焼状態診断装置
US5337716A (en) * 1992-02-04 1994-08-16 Mitsubishi Denki Kabushiki Kaisha Control apparatus for internal combustion engine
US5510715A (en) * 1993-02-02 1996-04-23 Diamond Electric Mfg. Co., Ltd. Apparatus for determining the ignition characteristic of an internal combustion engine
US5305635A (en) * 1993-04-02 1994-04-26 Ford Motor Company System and method for filtering a misfire detecting data stream to yield optimum measurement of misfire rate
JP3221184B2 (ja) * 1993-10-13 2001-10-22 株式会社日立製作所 故障診断装置および方法
DE4437480C1 (de) * 1994-10-20 1996-03-21 Bosch Gmbh Robert Verfahren zur Funktionsüberwachung einer Brennkraftmaschine zum Erkennen von Zündaussetzern
DE19524539C1 (de) * 1995-07-05 1996-11-28 Telefunken Microelectron Schaltungsanordnung zur Ionenstrommessung im Verbrennungsraum einer Brennkraftmaschine
DE19524540C1 (de) * 1995-07-05 1996-06-27 Telefunken Microelectron Schaltungsanordnung zur Ionenstrommessung
DE19524541C1 (de) * 1995-07-05 1996-12-05 Telefunken Microelectron Schaltungsanordnung zur Ionenstrommessung im Verbrennungsraum einer Brennkraftmaschine
US5872312A (en) * 1995-07-21 1999-02-16 Mercedes-Benz Ag Method for recognizing defective ignition or injection system in internal combustion engines
DE19526644C1 (de) * 1995-07-21 1996-07-04 Daimler Benz Ag Verfahren zur Erkennung von defekten Zünd- oder Einspritzvorrichtungen bei Verbrennungsmotoren
JP3441909B2 (ja) * 1997-02-07 2003-09-02 三菱電機株式会社 内燃機関の燃焼状態検出装置
DE19720532C2 (de) 1997-05-16 1999-04-22 Telefunken Microelectron Verfahren zur Bestimmung des Zustandes einer Zündkerze in den Verbrennungsräumen einer Brennkraftmaschine
US5778855A (en) * 1997-07-03 1998-07-14 Ford Global Technologies, Inc. Combustion stability control for lean burn engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9279406B2 (en) 2012-06-22 2016-03-08 Illinois Tool Works, Inc. System and method for analyzing carbon build up in an engine
DE102012014776A1 (de) 2012-07-25 2014-01-30 Volkswagen Aktiengesellschaft Verfahren und Steuergerät zur Erkennung von Verbrennungsaussetzern

Also Published As

Publication number Publication date
EP0897061B1 (fr) 2003-04-23
JPH11141448A (ja) 1999-05-25
DE19735010C1 (de) 1998-06-18
JP2946488B2 (ja) 1999-09-06
US6211680B1 (en) 2001-04-03
EP0897061A3 (fr) 1999-12-08

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